Television Networks Want to Include More Viewers Who Use DVRs to Watch Shows

Television networks and marketers spar every spring over the price of advertising for the coming season, but this year a potentially bigger fight looms over a different issue: how many of the networks' viewers should be counted.

Facing what is expected to be a lackluster ad market, TV networks hope to boost their revenue by changing the formula for how ad deals are structured so that it includes more viewers who use digital video...